Stretch Run question

I'm in a pretty tight race for the wild card with an outside chance of winning the division but Brian McCann just went down for 15 games for the second time this season. I'm entering a stretch of 21 games where I'll face teams that have lots of lefties, but my division is almost all righties.
http://fantasygames.sportingnews.com/baseball/stratomatic/2007/team/team_other.html?user_id=7387
I'm contemplating dropping McCann but if I do, what then? Should I grab Redmond and then upgrade my DH (the underperforming Matt Diaz) with someone like Moises Alou or Wily Mo Pena? Do I really help my cause with those guys since they are both injury risks? Or do I go for Bard and trade Diaz in for a Lofton/Williams platoon? Ideas? Suggestions? Thanks in advance.
http://fantasygames.sportingnews.com/baseball/stratomatic/2007/team/team_other.html?user_id=7387
I'm contemplating dropping McCann but if I do, what then? Should I grab Redmond and then upgrade my DH (the underperforming Matt Diaz) with someone like Moises Alou or Wily Mo Pena? Do I really help my cause with those guys since they are both injury risks? Or do I go for Bard and trade Diaz in for a Lofton/Williams platoon? Ideas? Suggestions? Thanks in advance.